Licenses of sounds
-----------------

Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
http://creativecommons.org/licenses/by-sa/3.0/

Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
http://creativecommons.org/licenses/by-sa/4.0/

Creative Commons Attribution 3.0 Unported (CC BY-SA 3.0)
http://creativecommons.org/licenses/by/3.0/

Glass breaking sounds (CC BY 3.0):
   1: http://www.freesound.org/people/cmusounddesign/sounds/71947/
   2: http://www.freesound.org/people/Tomlija/sounds/97669/
   3: http://www.freesound.org/people/lsprice/sounds/88808/

default_tool_breaks.ogg by EdgardEdition (CC BY 3.0), http://www.freesound.org/people/EdgardEdition

Mito551 (sounds) (CC BY-SA 3.0):
  default_dig_choppy.ogg
  default_dig_cracky.ogg
  default_dig_crumbly.1.ogg
  default_dig_crumbly.2.ogg
  default_dig_oddly_breakable_by_hand.ogg
  default_dug_node.1.ogg
  default_dug_node.2.ogg
  default_grass_footstep.1.ogg
  default_grass_footstep.2.ogg
  default_grass_footstep.3.ogg
  default_gravel_footstep.1.ogg
  default_gravel_footstep.2.ogg
  default_gravel_footstep.3.ogg
  default_gravel_footstep.4.ogg
  default_grass_footstep.1.ogg
  default_place_node.1.ogg
  default_place_node.2.ogg
  default_place_node.3.ogg
  default_place_node_hard.1.ogg
  default_place_node_hard.2.ogg
  default_hard_footstep.1.ogg
  default_hard_footstep.2.ogg
  default_hard_footstep.3.ogg
  default_sand_footstep.1.ogg
  default_sand_footstep.2.ogg
  default_wood_footstep.1.ogg
  default_wood_footstep.2.ogg
  default_dirt_footstep.1.ogg
  default_dirt_footstep.2.ogg
  default_glass_footstep.ogg

Metal sounds:
  default_dig_metal.ogg - yadronoff - CC-BY-3.0
  - https://www.freesound.org/people/yadronoff/sounds/320397/
  default_dug_metal.*.ogg - Iwan Gabovitch - qubodup - CC0
  - http://opengameart.org/users/qubodup
  default_metal_footstep.*.ogg - Ottomaani138 - CC0
  - https://www.freesound.org/people/Ottomaani138/sounds/232692/
  default_place_node_metal.*.ogg - Ogrebane - CC0
  - http://opengameart.org/content/wood-and-metal-sound-effects-volume-2

AGFX (CC BY 3.0)
https://www.freesound.org/people/AGFX/packs/1253/
  default_water_footstep.1.ogg
  default_water_footstep.2.ogg
  default_water_footstep.3.ogg
(default_water_footstep.4.ogg is silent)

blukotek (CC0 1.0)
https://www.freesound.org/people/blukotek/sounds/251660/
  default_dig_snappy.ogg

sonictechtonic (CC BY 3.0)
https://www.freesound.org/people/sonictechtonic/sounds/241872/
  player_damage.ogg

Voxelands project <http://www.voxelands.com/> (CC BY-SA 3.0)
  mcl_sounds_place_node_water.ogg
  mcl_sounds_dug_water.ogg

(Note: Artists from the Voxelands project include: sdzen, darkrose, sapier,
      Tom Peter, Telaron, juskiddink)

Michel Baradari <https://opengameart.org/content/lava-splash> (CC BY 3.0)

  default_place_node_lava.ogg

Adam_N (CC0 1.0):
  player_falling_damage.ogg
    Source: <https://www.freesound.org/people/Adam_N/sounds/346692/>

Alecia Shepherd (CC BY-SA 4.0):
  mcl_sounds_cloth.ogg
    Source: SnowSong sound and music pack <https://opengameart.org/content/snowsong-sound-and-music-pack>

Unknown authors (WTFPL):
  pedology_snow_soft_footstep.*.ogg